How is the multi-level composite space in China traditional architecture formed?

Because the ancient buildings in China are mainly wooden frame structures, that is, wooden columns and beams form the framework of the house, and the weight of the roof and eaves is transferred to the columns through the beam frame.

The components are mainly connected by tenon-mortise structure, and auxiliary devices such as nails are not used. The wall only acts as a partition, not a structural part that bears the weight of the house. The old proverb "The wall falls down but the house doesn't fall down" generally points out the most important feature of China architecture as a frame structure.

The ancient buildings in China are usually composed of several single buildings, regardless of size, which can be roughly divided into three parts: terrace, roof and roof. The terrace foundation is located under the building and is made of masonry to support the whole house.

Above the step base is a house, with wooden columns as the skeleton and door and window partitions installed in the middle; Upward is the roof built by wooden roof truss, which extends to the outside of the house, making a soft and elegant curve and covering it with blue-gray bricks or glazed tiles.